Main Vulnerability Database Vulnerabilities #VU31716

Improper Verification of Cryptographic Signature in Singularity - CVE-2020-13845

Published: July 21, 2020

Vulnerability identifier: #VU31716

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-13845

CWE-ID: CWE-347

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the image integrity is not validated when an ECL policy is enforced. A remote attacker can bypass implemented security restrictions.

Affected software

Singularity
singularity (Alpine package)
SUSE Linux
Opensuse

How to mitigate CVE-2020-13845

Install updates from vendor's website.

Singularity - update to 3.6.0
singularity (Alpine package) - update to 3.6.2-r0

External References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00046.html
https://github.com/hpcng/singularity/security/advisories/GHSA-pmfr-63c2-jr5c
https://medium.com/sylabs

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